317648345 has 32 divisors (see below), whose sum is σ = 448208640. Its totient is φ = 211610880.

The previous prime is 317648341. The next prime is 317648347. The reversal of 317648345 is 543846713.

It is not a de Polignac number, because 317648345 - 2² = 317648341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317648341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201410 + ... + 202980.

It is an arithmetic number, because the mean of its divisors is an integer number (14006520).

Almost surely, 2^317648345 is an apocalyptic number.

317648345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

317648345 is a deficient number, since it is larger than the sum of its proper divisors (130560295).

317648345 is a wasteful number, since it uses less digits than its factorization.

317648345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its digits is 241920, while the sum is 41.

The square root of 317648345 is about 17822.6918561703. The cubic root of 317648345 is about 682.3107267642.

The spelling of 317648345 in words is "three hundred seventeen million, six hundred forty-eight thousand, three hundred forty-five".